Actually the whole notification thing for me never worked until recently. It only tells you of the first post on the thread. Any posts after that will not trigger notifications until you read the unread posts.

Personally, I am not a big fan of holding up a game waiting for all the players to roll dice without needing to post again IC otherwise. Initiative rolls are always like that and I always roll them myself when I am DMing in PbP.

But if you want us to roll them, better to have everyone roll 3-4 and post them in the OOC thread. You can save them in your notes and use them as needed and we roll more after they have been used up.